Option
Description
NOTE:
All the parameters on the system profile setting screen are available only
when the System Profile option is set to Custom.
CPU Power Management
Sets the CPU power management. This option is set to
System DBPM (DAPC)
by
default. DBPM is Demand-Based Power Management. Other options include
OS DBPM
,
Maximum Performance
, and
Hardware P States
.
Memory Frequency
Sets the speed of the system memory. You can select
Maximum Performance
,
Maximum
Reliability
, or a specific speed.
Turbo Boost
Enables or disables the processor to operate in the turbo boost mode. This option is set to
Enabled
by default.
Energy Efficient Turbo
Enables or disables the
Energy Efficient Turbo
option.
Energy Efficient Turbo (EET) is a mode of operation where a processor’s core frequency is
adjusted to be within the turbo range based on workload.
C1E
Enables or disables the processor to switch to a minimum performance state when it is
idle. This option is set to
Enabled
by default.
C States
Enables or disables the processor to operate in all available power states. This option is set
to
Enabled
by default.
Write Data CRC
Enables or disables the Write Data CRC. This option is set to
Enabled
by default.
Collaborative CPU Performance Control
Enables or disables the CPU power management option. When set to Enabled, the CPU
power management is controlled by the OS DBPM and the System DBPM (DAPC). This
option is set to
Disabled
by default.
Memory Patrol Scrub
Sets the memory patrol scrub frequency. This option is set to Standard by default.
Memory Refresh Rate
Sets the memory refresh rate to either 1x or 2x. This option is set to
1x
by default.
Uncore Frequency
Enables you to select the
Processor Uncore Frequency
option.
Dynamic mode enables the processor to optimize power resources across the cores and
uncore during runtime. The optimization of the uncore frequency to either save power or
optimize performance is influenced by the setting of the
Energy Efficiency Policy
option.
Energy Efficient Polic
Enables you to select the
Energy Efficient Policy
option.
The CPU uses the setting to manipulate the internal behavior of the processor and
determines whether to target higher performance or better power savings.
Number of Turbo Boot Enabled Cores for
Processor 1
NOTE:
If there are two processors installed in the system, you see an entry for
Number of Turbo Boost Enabled Cores for Processor 2.
Controls the number of turbo boost enabled cores for processor 1. The maximum number
of cores is enabled by default.
Monitor/Mwait
Enables the Monitor/Mwait instructions in the processor. This option is set to
Enabled
for
all system profiles, except
Custom
by default.
NOTE:
This option can be disabled only if the C States option in the Custom
mode is set to disabled.
NOTE:
When C States is set to Enabled in the Custom mode, changing the
Monitor/Mwait setting does not impact the system power or performance.
42
Pre-operating system management applications
